Results 131 to 140 of about 891,231 (341)

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

Preparation and Properties of Fly Ash Based Porous Ceramics Modified by Al2O3

open access: yesKuangchan zonghe liyong
This is an article in the field of ceramics and composites. In order to improve the performance of fly ash-based porous ceramic materials, the samples were surface-treated using Al2O3 modifying liquid, and physical and mechanical properties, adsorption ...
Na DI, Bo LIU, Yuanyuan XU
doaj   +1 more source

Preparation of porous ceramics based on aluminum oxide [PDF]

open access: yes, 2018
In the present study, we performed preparation of porous ceramics based on alumina. Study consisted of two parts: obtaining powder and obtaining ceramics.
Гурьянов, Д. А.
core  

Evaluating Energy Absorption Performance of Filled Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney   +2 more
wiley   +1 more source

Porous Si3N4 Ceramics Prepared by Gelcasting Route and Pressureless Sintering at Different Temperatures

open access: yesMaterials Research
In this work, the gelcasting method was used to prepare porous Si3N4 ceramics, using sodium lauryl sulfate and Isobam 110 as foaming and gelling agents, respectively. Samples sintered at different temperatures were characterized by mercury porosimetry, X-
Regina O. da Silva   +6 more
doaj   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Porous hydroxyapatite and biphasic calcium phosphate ceramics promote ectopic osteoblast differentiation from mesenchymal stem cells

open access: yesScience and Technology of Advanced Materials, 2009
Because calcium phosphate (Ca–P) ceramics have been used as bone substitutes, it is necessary to investigate what effects the ceramics have on osteoblast maturation. We prepared three types of Ca–P ceramics with different Ca–P ratios, i.e. hydroxyapatite
Lingli Zhang, Nobutaka Hanagata, Megumi Maeda, Takashi Minowa, Toshiyuki Ikoma, Hongsong Fan and Xingdong Zhang
doaj  

[Preparation and properties of silica/hydroxyapatite whiskers porous ceramics scaffold]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023
Wan Y, Chen Q, Yan T.
europepmc   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

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